python实例26[将log同时写入文件和显示到UI的控件中]


特点:

1) 此GlobalLogging 采用了singlten模式,全局唯一,必须通过getInstance方法来获得GlobalLogging的实例;

2) 此GlobalLogging可以采用logging提供的log handlers(例如log到console,file。。。),同时支持提供自定义函数来处理log的接口,可以自己定义如何处理log;

 

 

GlobalLogging的使用如下: (将系统的所有的函数的log,同时写到log文件和UI中的text控件中)

 

from GlobalLogging import GlobalLogging

class A:
  
def __init__(self):
    GlobalLogging.getInstance().setLoggingToHanlder(self.getLog)
    GlobalLogging.getInstance().setLoggingToFile(
'logfile.txt')
    GlobalLogging.getInstance().setLoggingLevel(logging.INFO)

  
def getLog(self, s):
    self.outputText.append(s)

  
def FA(self):    
    GlobalLogging.getInstance().info(
'XXX')
    GlobalLogging.getInstance().error(
'XXX')

 

 

GlobalLogging代码:

 

import logging

class NullHandler(logging.Handler):
  
def emit(self, record): pass

class GlobalLogging:

  log 
= None
  
  @staticmethod
  
def getInstance():
    
if GlobalLogging.log == None: 
      GlobalLogging.log 
= GlobalLogging()
    
return GlobalLogging.log 

  
def __init__(self):
    self.logger 
= None
    self.handler 
= None
    self.level 
= logging.INFO
    self.logger 
= logging.getLogger("GlobalLogging")
    self.formatter 
= logging.Formatter("%(levelname)s - %(message)s")
    h 
= NullHandler()
    self.logger.addHandler(h)

def setLoggingToFile(self,file):     
fh 
= logging.FileHandler(file)
      fh.setFormatter(self.formatter)
      self.logger.addHandler(ch)
      
  
def setLoggingToConsole(self) : 
      ch 
= logging.StreamHandler()
      ch.setFormatter(self.formatter)
      self.logger.addHandler(fh)
      
  
def setLoggingToHanlder(self,handler): 
      self.handler 
= handler
      
  
def setLoggingLevel(self,level):
    self.level 
= level
    self.logger.setLevel(level)
    
  
def debug(self,s):
      self.logger.debug(s)
      
if not self.handler == None and self.level <= logging.DEBUG :
        
print logging.DEBUG
        
print self.level
        self.handler(
'debug:' + s)
  
def info(self,s):
      self.logger.info(s)
      
if not self.handler == None and self.level <= logging.INFO:
        self.handler(
'info:' + s)
  
def warn(self,s):
      self.logger.warn(s)
      
if not self.handler == None and self.level <= logging.WARNING:
        self.handler(
'warn:' + s)
  
def error(self,s):
      self.logger.error(s)
      
if not self.handler == None and self.level <= logging.ERROR:
        self.handler(
'error:' + s)
  
def critical(self,s):
      self.logger.critical(s)
      
if not self.handler == None and self.level <= logging.CRITICAL:
        self.handler(
'critical:' + s)

 

 

 

 

完!


作者:iTech
微信公众号: cicdops
出处:http://itech.cnblogs.com/
github:https://github.com/cicdops/cicdops

posted @ 2011-04-08 18:41  iTech  阅读(2732)  评论(1编辑  收藏  举报